Owner`s manual

. A complete Parts List is available at www.MillerWelds.com
OM-253 392 Page 14
4-5. Duty Cycle And Overheating For MIG
Duty Cycle is percentage of 10
minutes that unit can weld at rated
load without overheating.
If unit overheats, output stops. Wait
fifteen minutes for unit to cool.
Reduce amperage or duty cycle
before starting to weld again.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 − Ref. Duty Cycle Charts
2 Minutes Welding 8 Minutes Resting
20% Duty Cycle At 110A
Continuous
Welding
100% Duty Cycle At 75A
120V Input
230V Input
2 Minutes Welding 8 Minutes Resting
20% Duty Cycle At 150A
Continuous
Welding
100% Duty Cycle At 120A
10 100
20
50
0
20
40
60
80
100
120
140
160
180
200
120VAC
230VAC
% Duty Cycle
Output Amperes